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Topic: Manganese dioxide

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	Articles - Manganese (Site not responding. Last check: 2007-11-03)
		By the mid 18th century, manganese dioxide was in use in the manufacture of chlorine.
		Manganese dioxide is also used in the manufacture of oxygen and chlorine, and in drying fl paints.
		Manganese is part of the iron group of elements which are thought to be synthesized in large stars shortly before supernova explosion.
	www.xclimbing.net /articles/Manganese (1211 words)

	Manganese Dioxide
		Ingestion : The absorption of manganese by the stomach or intestine is limited in comparison with that from inhalation; it is very unlikely, therefore, that a sufficient quantity of material could be ingested to give rise to symptoms which require first aid.
		Manganese dioxide may enter the body via the lungs or digestive tract, the pulmonary route is the most common and presents the greatest danger.
		Absorbed manganese accumulates in the blood until a certain threshold value is exceeded after which further absorption leads to deposition in the majority of the body’s organs and chronic manganese poisoning results.
	www.ctmsupplies.hemscott.net /Manganese%20Dioxide.htm (1042 words)

	Manganese Dioxide Manufacturers,Manganous Oxide Suppliers,Manganese Dioxide Suppliers,Manganous Oxide Manufacturers (Site not responding. Last check: 2007-11-03)
		We are manufacturers, suppliers and exporters of Manganese Oxide, Processors of Manganese Dioxide and further we are engaged in the manufacture and development of various feed and other minerals based products.
		The company had a humble beginning and the foundation was laid for processing of Manganese Dioxide in the year 1983-84.
		Manganese Dioxide Granules are used in water treatment for removal of certain un-wanted impurities.
	www.indiamart.com /nagpurpyrolusite (585 words)

	Manganese (Site not responding. Last check: 2007-11-03)
		Manganese, Mn, is a transition metal element, found in Group VIIa of the periodic table.
		Manganese is widely distributed in nodules on the ocean floor.
		Manganese is extracted by the reduction of manganese dioxide with carbon.
	www.ucc.ie /ucc/depts/chem/dolchem/html/elem/elem025.html (61 words)

	Patent 4549943: Suspension bath and process for production of electrolytic manganese dioxide
		Among the forms of manganese dioxide which have been found to exhibit desirable electrochemical properties in both aqueous and nonaqueous cells is electrolytic manganese dioxide ("EMD").
		The electrolytic manganese dioxide is removed from the anode and after conventional post-treatment, it is ready for use as an active cathode material in dry cells.
		As is well known in the art, the presence of potassium in electrolytic manganese dioxide is undesirable, having adverse effects on the utilization of such manganese dioxide in alkaline cells.
	www.freepatentsonline.com /4549943.html (2692 words)

	Berenguela Manganese Project, Peru (Site not responding. Last check: 2007-11-03)
		Manganese is the fourth most used metal in terms of tonnage, after iron (780 million tons), aluminum (17 million tons), and copper (10 million tons), with 8 million tons of manganese (as metal) extracted annually.
		Manganese deficiency in most crops is indicated by an overall chlorisisi of the leaf, which leaves only the main veins and midrib outlined in dark green healthy tissue.
		Manganese was not a consideration, primarily due to the lack of an appropriate means of processing the ore for its recovery.
	www.berenguela.com (5814 words)

	Manganese Chloride - Resources from Educational and Academic Institutions (Site not responding. Last check: 2007-11-03)
		MANGANESE : The +2 oxidation state is very common for manganese and the most stable.
		Manganese chloride is soluble and hydrochloric acid is a strong acid.
		Altweb-ATLA Journals :...and manganese as cations, respectively, in order to determine the contributions of these metals, the EC50s of zinc chloride and manganese chloride were also...
	drugs.mongabay.com /Manganese_Chloride.html (1466 words)

	Patent 5532085: Additives for alkaline electrochemical cells having manganese dioxide cathodes
		The cathode material is typically of manganese dioxide and may include small amounts of carbon or graphite to increase conductivity.
		A conventional primary zinc/manganese dioxide alkaline cell (standard C cell), is prepared with conventional cathode and anode active material, electrolyte and separator membrane.
		Thus, the cathode composition of the experimental cell in the present example is: Electrolytic manganese dioxide (82.5 wt %), ZnMn.sub.2 O.sub.4 (1.5 wt %), graphite (9.2 wt %), polyethylene powder binder (0.3 wt %) and a 7 Normal "aqueous KOH solution" (6.5 wt %).
	www.freepatentsonline.com /5532085.html (3080 words)

	SANYO to establish a joint venture company with GP Batteries for the business of Manganese Dioxide Primary Lithium ... (Site not responding. Last check: 2007-11-03)
		Manganese dioxide primary Lithium batteries have strong features such as high-power, long lasting reliability and stable operation even at extremely low temperatures (-40 degrees centigrade).
		Production lines of manganese dioxide primary Lithium batteries for camera use will be transferred from SANYO Energy Tottori Co., Ltd., a subsidiary of SANYO, to the new company.
		Manufacturing of Lithium batteries (manganese dioxide primary Lithium batteries, manganese dioxide rechargeable Lithium batteries), assembling electrode of Nickel Cadmium batteries and technical development of alkaline manganese batteries.
	www.global-sanyo.com /news/0406/0630-e.html (466 words)

	Manganese(IV) oxide - Enpsychlopedia (Site not responding. Last check: 2007-11-03)
		It occurs naturally as the mineral pyrolusite which is the main source for extracting the metal manganese.
		The procedure consists of merely heating potassium chlorate and manganese dioxide together in a hard glass container and collecting the gas over water.
		Manganese dioxide also catalyses the decomposition of hydrogen peroxide to oxygen and water.
	www.grohol.com /psypsych/Manganese_dioxide (335 words)

	microbattery.com - Toshiba lithium coin cell batteries, manganese dioxide batteries, 3V batteries
		Manganese dioxide is chemically very stable as the positive material to assure the long service life.
		Lithium coin batteries have an annual self discharge rate of one percent or less, so their shelf life is much longer than conventional batteries.
		The electrolyte used in manganese dioxide lithium batteries is a special non-aqueous electrolyte which gives them superb leak resistant characteristics and high reliability.
	www.microbattery.com /Toshiba%20Webpages/lithium%20coin%20new.htm (160 words)

	clayart - subject 'materials - manganese' (Site not responding. Last check: 2007-11-03)
		monona on: boiling point of manganese dioxide (fwd)
		monona re: boiling point of manganese dioxide -- (fwd)
		manganese and mmt in 2 large canadian cities
	www.potters.org /category026.htm (71 words)

	MANGANESE DIOXIDE
		Absorption of inorganic manganese salts through the lungs is poor but may occur in chronic poisoning.
		Although they are poorly absorbed through the intestines, inorganic manganese salts may produce hypoglycemia and decreased calcium blood levels should absorption occur.
		Manganese Dioxide: LD50 oral rat > 3478 mg/kg.
	www.jtbaker.com /msds/englishhtml/m0715.htm (1136 words)

	ÃÀ¹ú×¨ÀûÉêÇë¹«¿ªËµÃ÷Êé 20040009400 - Battery cathode active material, method for producing ... (Site not responding. Last check: 2007-11-03)
		The present invention provides a battery cathode active material formed of electrolytic manganese dioxide which has a large specific area and a high electric potential and can enhance battery characteristics such as high-rate characteristics and high-rate pulse characteristics when used as a battery cathode active material.
		The invention also provides a method for producing electrolytic manganese dioxide and a battery employing the cathode active material.
		The battery cathode active material is formed of electrolytic manganese dioxide containing a sulfate group in an amount of 1.3 to 1.6 wt.
	cxp.paterra.com /uspregrant20040009400cn.html (166 words)

	About Georgian Academy of Sciences (Site not responding. Last check: 2007-11-03)
		Working out the tecnology of obtaining the electrolytic dioxide of manganeze oxid ores have become the base of building of the first in the USSR training-industrial plant in Rustavi, which produced 1000 tons of excellent production.
		Tarakanovsky G.G., Japaridze L.N. Vibrational impact arrangement for removing of the sediment of electrolytic manganese dioxide from the titanium electrodes.
		Method of preparation of anod, which is used for obtaining of electrolytic manganese dioxide.
	www.acnet.ge /pl/ljaparid.htm (682 words)

	Alkaline Manganese Dioxide - 1.5 Volts per cell, batteries.
		Alkaline Manganese Dioxide - 1.5 Volts per cell, batteries.
		The alkaline cell has the zinc anode at the centre of the cell in powder form and the manganese dioxide/graphite cathode as hard-compressed cylindrical pellets surrounding the anode.
		A chemically aggressive and strongly alkaline gelled solution of potassium hydroxide acts as the electrolyte and gives its name to the system.
	bugclub.org /beginners/batteries/alkaline.html (484 words)

	Manufacturer & Exporter of Manganese Dioxide, Manganous Oxide (Manganese Oxide), Indian, Natural Manganese Dioxide ...
		Manganese Dioxide, Manganous Oxide, Manganese Ore, Manganese Sulphate and Ferro Alloys
		We have high tech plant, manufacturing all grades of Ferro Manganese and various Alloys, whereas Sahjanand Pulverisers is producing Oxide, Dioxide and Roasted Manganese Products.
		This is exactly why that Sahjanand Group of Industries has been one of the leading names over the years in the Manganese Dioxide and Manganous Oxide industry in India.
	www.sahjanand.com (262 words)

	Steatite - Lithium Managanese Dioxide (Site not responding. Last check: 2007-11-03)
		Here we are going to concentrate our discussion on our (+MnO2/Li-) CR batteries which use manganese dioxide as the positive material.
		The manganese dioxide which forms the positive material is a solid and chemically stable.
		The batteries, which possess excellent leak proof characteristics and use an electrolyte which has a very low corrosively, are extremely safe and will not damage printed circuit boards or other equipment.
	www.steatite.co.uk /lith_mag.html (410 words)

	5.7.1 Heterogeneous Catalysts (Site not responding. Last check: 2007-11-03)
		Experimental setup: A spoonful of manganese dioxide is dropped into a test tube containing 3% hydrogen peroxide solution.
		Immediately following the addition of manganese dioxide, the hydrogen peroxide decomposes into water and oxygen.
		The manganese dioxide, present as a solid, increases the rate of decomposition of the hydrogen peroxide in the solution, whereas the manganese dioxide itself is not used up in the reaction.
	www.pc.chemie.uni-siegen.de /pci/versuche/english/v57-1.html (171 words)

	Removal of Arsenic from Ground Water by Manganese Dioxide–Coated Sand (Site not responding. Last check: 2007-11-03)
		In a laboratory study, manganese dioxide–coated sand (MDCS), prepared by reacting potassium permanganate with manganese chloride under an alkaline condition and in the presence of sand, showed promise as a medium for use in small systems or home-treatment units in developing areas of the world, for removing arsenic (III) and arsenic (V) from ground water.
		A low-cost, simple home arsenic removal unit, containing 6 kg (4 L) of the MDCS medium and operated at 6 L/h, produced 740 and 700 L of water in two cycles of runs when the influent arsenic concentration was 0.5 mg As/L of arsenic(III) and 0.5 mg As/L of arsenic(V).
		No arsenic(III) or leaching of manganese from the medium was detected in the effluent.
	www.pubs.asce.org /WWWdisplay.cgi?9903417 (257 words)

	Duracell: Technical/OEM
		Light in weight and compact, DURACELL® Lithium Manganese Dioxide batteries are ideally suited when portability is a prime requisite in equipment design.
		DURACELL® Lithium Manganese Dioxide batteries are being used in a wide range of applications, from powering all functions of fully-automatic 35mm flash cameras to providing long-term standby power for computer clocks and personal digital organizers.
		DURACELL® Lithium Manganese Dioxide batteries are revolutionizing equipment design by allowing reductions in size and weight, while increasing production performance and capabilities to levels previously unattainable.
	www.duracell.com /oem/Primary/Lithium (190 words)

	Erachem Comilog - Products
		Erachem Comilog is the world's leading source of manganese fine chemicals.
		Erachem Comilog's broad portfolio of specialized manganese products has been developed in close cooperation with individual companies or leading companies in their particular industry segment.
		What we do best is leverage our extensive knowledge and process technology in concert with customer need to devise new or improved manganese products.
	www.erachem-comilog.com /products.html (131 words)

	Free electrolytic manganese dioxide stripping (Site not responding. Last check: 2007-11-03)
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	free-porn-galleries-archive.com /gallery160.html (302 words)

	Manganese Dioxide Manufacturer India,Iron Oxide Manufacturer India.
		Prakash Global Limited - Specialized Manufacturer of Manganese Dioxide and Iron Oxide Manufacturer from India.
		Contact Iron Oxide Manufacturer and India Manufacturer of Manganese Dioxide Manufacturer from India.
		In addition chemical manganese dioxide can be used in the production of ferrites, magnetites, thermistors, as well as for manufacturing of hopcalite cartridge adsorbents.
	www.prakashglobal.com /manganesedioxide.htm (154 words)

	[No title] (Site not responding. Last check: 2007-11-03)
		Donne, G. Lawrance and D. Swinkels; “Redox Processes Occurring at the Manganese Dioxide Electrode Under Quasi-Thermodynamic Conditions”, Presented at the 190th Meeting of the Electrochemical Society, San Antonio, TX, USA (1997).
		Donne and J. Kennedy; “Electrochemical Impedance Spectroscopy of the Alkaline Manganese Dioxide Electrode”, J. Electrochem.
		Donne and J. Kennedy; “Transmission Line Modelling of the Manganese Dioxide Electrode in Concentrated KOH Electrolytes”, J. Electrochem.
	www.newcastle.edu.au /discipline/chemistry/sdpub.doc (486 words)

	China Chemical Reporter : Electrolysis Manganese Dioxide Project in Hunan.(Xiangtan Electro-Chemical Science and ... (Site not responding. Last check: 2007-11-03)
		Recently 10 000 t/a non-mercury grade electrolysis manganese dioxide project came on stream in Xiangtan Electro-Chemical Science & Technology Co., Ltd. in Hunan, which makes the company become the largest electrolysis manganese dioxide producer in world with total capacity of 40 000 t/a.
		Lean ore of manganese carbonate is used as raw materials while deeply degree molybdenum removal technique under the application of high-effective molybdenum removal agent is selected.
		The total amount of investment reaches 178 million yuan and the increasement of annual sales and profit and tax will be 200 million yuan and 69.79 million yuan separately.
	static.elibrary.com /c/chinachemicalreporter/june162001/electrolysismanganesedioxideprojectinhunanxiangtan/index.html (246 words)

	microbattery.com - Maxell lithium coin cell batteries, manganese dioxide batteries, 3V batteries
		The Maxell coin-type lithium manganese dioxide battery is a small, lightweight battery with an operating voltage of 3V and the ability to operate over a wide temperature range.
		It has a wide range of applications, both for powering devices such as wrist watches, PDA's, key fob's, calculators, memory and RTC backup, and other portable electronic devices.
		The coin-type lithium manganese dioxide battery uses manganese dioxide (MnO2) as its positive active material, lithium (Li) as its negative active material, and an organic electrolyte.
	www.microbattery.com /Maxell/Maxell%20Lithium%20Coin.html (229 words)

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